Study On Technology Of Cleaner Production In The Cornstarch Industry

This dissertation is based on the theory and methodology of circular economy, sustainable development. Using the basic theory of cleaner production, absorbing the research achievements of cleaner production all over the world, the contents and approaches of implementing cleaner production audit in cornstarch enterprises were discussed, and cleaner production in Yikang company were introduced. Then some good cleaner production technology was study deeply, thereby the technology is used in practice absolutely.This dissertation is consisted of four parts, which include:First part is introduction, which contains the basic theory of cleaner production, the primary approaches and tools in implementing cleaner production, and the practices of cleaner production all over the world. The purpose and significance of this dissertation are elucidated in energy sources, sustainable development, environment and cleaner production these four standpoints. The implementation of cleaner production and extension of industrial chain in coal mine are the only way which coinstarch enterprises development sustainedly.The second part describes the history of cornstarch industry all over the word, then introduces the production process of cornstarch popular in the word now. The main environmental problems during cornstarch production, and the ways to solve these problems were analysed. But, there are many shortages in these ways. So for the manage of starch wastewater, we should strongly development cleaner production, circulation economy, look for method of decreasing wastes during production.The third part illuminates the contents and approaches of corntrarch cleaner production. The approaches of auditing can be divided in seven phases. During auditing, prophase work should be prepared through training and setting up special organizations in the first phase. In preliminary and evaluating phases, we should investigate the actuality of coal mine and its pollution, and then select evaluated index and auditing keystone. Materiel calculation and the reason of producing castoff will also be analysed. Next, cleaner production plan will be classified and filtered to feasibility analysis in plan choosing and analysis phases. Gathering effects and sustaining improvement are advanced phases, we collect environmental, economic and social benefits from all cleaner production plans, then lay a course for sustainable cleaner production. Then the project of Yikang Compony cleaner production was described.The forth part studies cleaner production technology in the cornstarch industry. Aim at technique reformation, equipments maintenance and renewal, Improving management, the product replace or renewal, wastes recovery, the recycling of the starch wastewater and by-product processing, the cleaner production technology was study. The plans apply during cleaner production audit were introduced in detail, economical benefit and environmental benefit of implement these plans is elucidated.